2 The Following Solutions Are Prepared From 0 200 M Nicl2 And Their Absorbance Measured At 725 Nm Solution Volume M 1 (65.39 KiB) Viewed 55 times
2. The following solutions are prepared from 0.200 M NiCl2 and their absorbance measured at 725 nm. Solution # Volume (mL) of 0.200 M NiCl2 Volume (mL) of H2O Absorbance at 725 nm NiCl21 1 1.00 4.00 0.105 2 2.00 3.00 0.210 3 3.00 2.00 0.315 4 4.00 1.00 0.420 5 5.00 0.00 0.525 (a) Calculate the molar concentration of NiCl2 in each solution 1-5.
ΣΑ, 2. (b) Determine the Beer's constant k using the linear regression formula: k= Σc (where c= molar concentration, and A = absorbance) =
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